/*
* IronJacamar, a Java EE Connector Architecture implementation
* Copyright 2014, Red Hat Inc, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the Eclipse Public License 1.0 as
* published by the Free Software Foundation.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Eclipse
* Public License for more details.
*
* You should have received a copy of the Eclipse Public License
* along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.ironjacamar.core.workmanager;
import org.ironjacamar.core.CoreBundle;
import org.ironjacamar.core.CoreLogger;
import org.ironjacamar.core.api.workmanager.DistributedWorkManager;
import org.ironjacamar.core.api.workmanager.DistributedWorkManagerStatistics;
import org.ironjacamar.core.spi.workmanager.Address;
import org.ironjacamar.core.spi.workmanager.notification.NotificationListener;
import org.ironjacamar.core.spi.workmanager.policy.Policy;
import org.ironjacamar.core.spi.workmanager.selector.Selector;
import org.ironjacamar.core.spi.workmanager.transport.Transport;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import javax.resource.spi.work.DistributableWork;
import javax.resource.spi.work.Work;
import javax.resource.spi.work.WorkException;
import javax.resource.spi.work.WorkManager;
import org.jboss.logging.Logger;
import org.jboss.logging.Messages;
/**
* The distributed work manager implementation.
*
* @author <a href="mailto:jesper.pedersen@ironjacamar.org">Jesper Pedersen</a>
*/
public class DistributedWorkManagerImpl extends WorkManagerImpl implements DistributedWorkManager
{
/** The logger */
private static CoreLogger log = Logger.getMessageLogger(CoreLogger.class,
DistributedWorkManagerImpl.class.getName());
/** Whether trace is enabled */
private static boolean trace = log.isTraceEnabled();
/** The bundle */
private static CoreBundle bundle = Messages.getBundle(CoreBundle.class);
/** Policy */
private Policy policy;
/** Selector */
private Selector selector;
/** Transport */
private Transport transport;
/** Notification listeners */
private Collection<NotificationListener> listeners;
/** Distributed statistics enabled */
private boolean distributedStatisticsEnabled;
/** Distributed statistics */
private DistributedWorkManagerStatisticsImpl distributedStatistics;
/** Should doWork be enabled for distribution */
private boolean doWorkDistributionEnabled;
/** Should startWork be enabled for distribution */
private boolean startWorkDistributionEnabled;
/** Should scheduleWork be enabled for distribution */
private boolean scheduleWorkDistributionEnabled;
/** Local address */
private Address localAddress;
/**
* Constructor
*/
public DistributedWorkManagerImpl()
{
super();
this.policy = null;
this.selector = null;
this.transport = null;
this.listeners = Collections.synchronizedList(new ArrayList<NotificationListener>(3));
this.distributedStatisticsEnabled = true;
this.distributedStatistics = null;
this.doWorkDistributionEnabled = true;
this.startWorkDistributionEnabled = true;
this.scheduleWorkDistributionEnabled = true;
this.localAddress = null;
}
/**
* {@inheritDoc}
*/
public Policy getPolicy()
{
return policy;
}
/**
* {@inheritDoc}
*/
public synchronized void setPolicy(Policy v)
{
if (policy != null && policy instanceof NotificationListener)
{
listeners.remove((NotificationListener)policy);
}
policy = v;
if (policy != null && policy instanceof NotificationListener)
{
listeners.add((NotificationListener)policy);
}
}
/**
* {@inheritDoc}
*/
public Selector getSelector()
{
return selector;
}
/**
* {@inheritDoc}
*/
public synchronized void setSelector(Selector v)
{
if (selector != null && selector instanceof NotificationListener)
{
listeners.remove((NotificationListener)selector);
}
selector = v;
if (selector != null && selector instanceof NotificationListener)
{
listeners.add((NotificationListener)selector);
}
}
/**
* {@inheritDoc}
*/
public Transport getTransport()
{
return transport;
}
/**
* {@inheritDoc}
*/
public synchronized void setTransport(Transport v)
{
if (transport != null)
{
if (transport instanceof NotificationListener)
listeners.remove((NotificationListener)transport);
removeDistributedStatistics();
}
transport = v;
if (transport != null)
{
if (transport instanceof NotificationListener)
listeners.add((NotificationListener)transport);
initDistributedStatistics();
}
}
/**
* {@inheritDoc}
*/
public boolean isDistributedStatisticsEnabled()
{
return distributedStatisticsEnabled;
}
/**
* {@inheritDoc}
*/
public void setDistributedStatisticsEnabled(boolean v)
{
distributedStatisticsEnabled = v;
}
/**
* {@inheritDoc}
*/
public Collection<NotificationListener> getNotificationListeners()
{
return listeners;
}
/**
* Set the listeners
* @param v The value
*/
void setNotificationListeners(Collection<NotificationListener> v)
{
listeners = v;
}
/**
* {@inheritDoc}
*/
public void setDoWorkDistributionEnabled(boolean v)
{
doWorkDistributionEnabled = v;
}
/**
* {@inheritDoc}
*/
public boolean isDoWorkDistributionEnabled()
{
return doWorkDistributionEnabled;
}
/**
* {@inheritDoc}
*/
public void setStartWorkDistributionEnabled(boolean v)
{
startWorkDistributionEnabled = v;
}
/**
* {@inheritDoc}
*/
public boolean isStartWorkDistributionEnabled()
{
return startWorkDistributionEnabled;
}
/**
* {@inheritDoc}
*/
public void setScheduleWorkDistributionEnabled(boolean v)
{
scheduleWorkDistributionEnabled = v;
}
/**
* {@inheritDoc}
*/
public boolean isScheduleWorkDistributionEnabled()
{
return scheduleWorkDistributionEnabled;
}
/**
* {@inheritDoc}
*/
public void localDoWork(Work work) throws WorkException
{
if (transport != null)
{
checkTransport();
if (getLongRunningThreadPool() != null && WorkManagerUtil.isLongRunning(work))
{
transport.updateLongRunningFree(getLocalAddress(),
getLongRunningThreadPool().getNumberOfFreeThreads() - 1);
}
else
{
transport.updateShortRunningFree(getLocalAddress(),
getShortRunningThreadPool().getNumberOfFreeThreads() - 1);
}
WorkEventListener wel = new WorkEventListener(WorkManagerUtil.isLongRunning(work),
getShortRunningThreadPool(),
getLongRunningThreadPool(),
getLocalAddress(),
transport);
super.doWork(work, WorkManager.INDEFINITE, null, wel);
}
else
{
super.doWork(work);
}
}
/**
* {@inheritDoc}
*/
public void localScheduleWork(Work work) throws WorkException
{
if (transport != null)
{
checkTransport();
if (getLongRunningThreadPool() != null && WorkManagerUtil.isLongRunning(work))
{
transport.updateLongRunningFree(getLocalAddress(),
getLongRunningThreadPool().getNumberOfFreeThreads() - 1);
}
else
{
transport.updateShortRunningFree(getLocalAddress(),
getShortRunningThreadPool().getNumberOfFreeThreads() - 1);
}
WorkEventListener wel = new WorkEventListener(WorkManagerUtil.isLongRunning(work),
getShortRunningThreadPool(),
getLongRunningThreadPool(),
getLocalAddress(),
transport);
super.scheduleWork(work, WorkManager.INDEFINITE, null, wel);
}
else
{
super.scheduleWork(work);
}
}
/**
* {@inheritDoc}
*/
public long localStartWork(Work work) throws WorkException
{
if (transport != null)
{
checkTransport();
if (getLongRunningThreadPool() != null && WorkManagerUtil.isLongRunning(work))
{
transport.updateLongRunningFree(getLocalAddress(),
getLongRunningThreadPool().getNumberOfFreeThreads() - 1);
}
else
{
transport.updateShortRunningFree(getLocalAddress(),
getShortRunningThreadPool().getNumberOfFreeThreads() - 1);
}
WorkEventListener wel = new WorkEventListener(WorkManagerUtil.isLongRunning(work),
getShortRunningThreadPool(),
getLongRunningThreadPool(),
getLocalAddress(),
transport);
return super.startWork(work, WorkManager.INDEFINITE, null, wel);
}
else
{
return super.startWork(work);
}
}
/**
* {@inheritDoc}
*/
@Override
public void doWork(Work work) throws WorkException
{
if (policy == null || selector == null || transport == null ||
work == null || !(work instanceof DistributableWork) || !doWorkDistributionEnabled)
{
localDoWork(work);
}
else
{
doFirstChecks(work, WorkManager.INDEFINITE, null);
checkTransport();
DistributableWork dw = (DistributableWork)work;
boolean executed = false;
if (policy.shouldDistribute(this, dw))
{
Address dwmAddress = selector.selectDistributedWorkManager(getLocalAddress(), dw);
if (dwmAddress != null && !getLocalAddress().equals(dwmAddress))
{
transport.doWork(dwmAddress, dw);
executed = true;
}
}
if (!executed)
{
localDoWork(work);
}
}
}
/**
* {@inheritDoc}
*/
@Override
public long startWork(Work work) throws WorkException
{
if (policy == null || selector == null || transport == null ||
work == null || !(work instanceof DistributableWork) || !startWorkDistributionEnabled)
{
return localStartWork(work);
}
else
{
doFirstChecks(work, WorkManager.INDEFINITE, null);
checkTransport();
DistributableWork dw = (DistributableWork)work;
if (policy.shouldDistribute(this, dw))
{
Address dwmAddress = selector.selectDistributedWorkManager(getLocalAddress(), dw);
if (dwmAddress != null && !getLocalAddress().equals(dwmAddress))
{
return transport.startWork(dwmAddress, dw);
}
}
return localStartWork(work);
}
}
/**
* {@inheritDoc}
*/
@Override
public void scheduleWork(Work work) throws WorkException
{
if (policy == null || selector == null || transport == null ||
work == null || !(work instanceof DistributableWork) || !scheduleWorkDistributionEnabled)
{
localScheduleWork(work);
}
else
{
doFirstChecks(work, WorkManager.INDEFINITE, null);
checkTransport();
DistributableWork dw = (DistributableWork)work;
boolean executed = false;
if (policy.shouldDistribute(this, dw))
{
Address dwmAddress = selector.selectDistributedWorkManager(getLocalAddress(), dw);
if (dwmAddress != null && !getLocalAddress().equals(dwmAddress))
{
transport.scheduleWork(dwmAddress, dw);
executed = true;
}
}
if (!executed)
{
localScheduleWork(work);
}
}
}
/**
* Check the transport
* @exception WorkException In case of an error
*/
private void checkTransport() throws WorkException
{
if (!transport.isInitialized())
{
try
{
transport.initialize();
initialize();
}
catch (Throwable t)
{
WorkException we = new WorkException("Exception during transport initialization");
we.initCause(t);
throw we;
}
}
}
/**
* {@inheritDoc}
*/
public DistributedWorkManagerStatistics getDistributedStatistics()
{
return distributedStatistics;
}
/**
* Set the distributed statistics
* @param v The value
*/
void setDistributedStatistics(DistributedWorkManagerStatisticsImpl v)
{
distributedStatistics = v;
}
/**
* Init distributed statistics
*/
private synchronized void initDistributedStatistics()
{
if (distributedStatistics == null)
{
distributedStatistics = new DistributedWorkManagerStatisticsImpl();
listeners.add((NotificationListener)distributedStatistics);
}
}
/**
* Remove distributed statistics
*/
private synchronized void removeDistributedStatistics()
{
if (distributedStatistics != null)
{
listeners.remove((NotificationListener)distributedStatistics);
distributedStatistics.setTransport(null);
distributedStatistics = null;
}
}
/**
* {@inheritDoc}
*/
@Override
protected void deltaDoWorkAccepted()
{
if (trace)
log.trace("deltaDoWorkAccepted");
super.deltaDoWorkAccepted();
if (distributedStatisticsEnabled && distributedStatistics != null && transport != null)
{
try
{
checkTransport();
distributedStatistics.sendDeltaDoWorkAccepted();
}
catch (WorkException we)
{
log.debugf("deltaDoWorkAccepted: %s", we.getMessage(), we);
}
}
}
/**
* {@inheritDoc}
*/
@Override
protected void deltaDoWorkRejected()
{
if (trace)
log.trace("deltaDoWorkRejected");
super.deltaDoWorkRejected();
if (distributedStatisticsEnabled && distributedStatistics != null && transport != null)
{
try
{
checkTransport();
distributedStatistics.sendDeltaDoWorkRejected();
}
catch (WorkException we)
{
log.debugf("deltaDoWorkRejected: %s", we.getMessage(), we);
}
}
}
/**
* {@inheritDoc}
*/
@Override
protected void deltaStartWorkAccepted()
{
if (trace)
log.trace("deltaStartWorkAccepted");
super.deltaStartWorkAccepted();
if (distributedStatisticsEnabled && distributedStatistics != null && transport != null)
{
try
{
checkTransport();
distributedStatistics.sendDeltaStartWorkAccepted();
}
catch (WorkException we)
{
log.debugf("deltaStartWorkAccepted: %s", we.getMessage(), we);
}
}
}
/**
* {@inheritDoc}
*/
@Override
protected void deltaStartWorkRejected()
{
if (trace)
log.trace("deltaStartWorkRejected");
super.deltaStartWorkRejected();
if (distributedStatisticsEnabled && distributedStatistics != null && transport != null)
{
try
{
checkTransport();
distributedStatistics.sendDeltaStartWorkRejected();
}
catch (WorkException we)
{
log.debugf("deltaStartWorkRejected: %s", we.getMessage(), we);
}
}
}
/**
* {@inheritDoc}
*/
@Override
protected void deltaScheduleWorkAccepted()
{
if (trace)
log.trace("deltaScheduleWorkAccepted");
super.deltaScheduleWorkAccepted();
if (distributedStatisticsEnabled && distributedStatistics != null && transport != null)
{
try
{
checkTransport();
distributedStatistics.sendDeltaScheduleWorkAccepted();
}
catch (WorkException we)
{
log.debugf("deltaScheduleWorkAccepted: %s", we.getMessage(), we);
}
}
}
/**
* {@inheritDoc}
*/
@Override
protected void deltaScheduleWorkRejected()
{
if (trace)
log.trace("deltaScheduleWorkRejected");
super.deltaScheduleWorkRejected();
if (distributedStatisticsEnabled && distributedStatistics != null && transport != null)
{
try
{
checkTransport();
distributedStatistics.sendDeltaScheduleWorkRejected();
}
catch (WorkException we)
{
log.debugf("deltaScheduleWorkRejected: %s", we.getMessage(), we);
}
}
}
/**
* {@inheritDoc}
*/
@Override
protected void deltaWorkSuccessful()
{
if (trace)
log.trace("deltaWorkSuccessful");
super.deltaWorkSuccessful();
if (distributedStatisticsEnabled && distributedStatistics != null && transport != null)
{
try
{
checkTransport();
distributedStatistics.sendDeltaWorkSuccessful();
}
catch (WorkException we)
{
log.debugf("deltaWorkSuccessful: %s", we.getMessage(), we);
}
}
}
/**
* {@inheritDoc}
*/
@Override
protected void deltaWorkFailed()
{
if (trace)
log.trace("deltaWorkFailed");
super.deltaWorkFailed();
if (distributedStatisticsEnabled && distributedStatistics != null && transport != null)
{
try
{
checkTransport();
distributedStatistics.sendDeltaWorkFailed();
}
catch (WorkException we)
{
log.debugf("deltaWorkFailed: %s", we.getMessage(), we);
}
}
}
/**
* Get local address
* @return The value
*/
Address getLocalAddress()
{
if (localAddress == null)
localAddress = new Address(getId(), getName(), transport != null ? transport.getId() : null);
return localAddress;
}
/**
* Initialize
*/
public void initialize()
{
if (distributedStatistics != null)
{
distributedStatistics.setOwnId(getLocalAddress());
distributedStatistics.setTransport(transport);
}
}
/**
* Clone the WorkManager implementation
* @return A copy of the implementation
* @exception CloneNotSupportedException Thrown if the copy operation isn't supported
*
*/
@Override
public org.ironjacamar.core.api.workmanager.WorkManager clone() throws CloneNotSupportedException
{
DistributedWorkManagerImpl wm = (DistributedWorkManagerImpl)super.clone();
wm.setPolicy(getPolicy());
wm.setSelector(getSelector());
wm.setTransport(getTransport());
wm.setDistributedStatisticsEnabled(isDistributedStatisticsEnabled());
wm.setDoWorkDistributionEnabled(isDoWorkDistributionEnabled());
wm.setStartWorkDistributionEnabled(isStartWorkDistributionEnabled());
wm.setScheduleWorkDistributionEnabled(isScheduleWorkDistributionEnabled());
DistributedWorkManagerStatisticsImpl dwmsi = new DistributedWorkManagerStatisticsImpl();
wm.setDistributedStatistics(dwmsi);
if (getPolicy() != null && getPolicy() instanceof NotificationListener)
wm.listeners.add((NotificationListener)getPolicy());
if (getSelector() != null && getSelector() instanceof NotificationListener)
wm.listeners.add((NotificationListener)getSelector());
if (getTransport() != null && getTransport() instanceof NotificationListener)
wm.listeners.add((NotificationListener)getTransport());
wm.listeners.add((NotificationListener)dwmsi);
return wm;
}
/**
* {@inheritDoc}
*/
@Override
public void toString(StringBuilder sb)
{
sb.append(" policy=").append(policy);
sb.append(" selector=").append(selector);
sb.append(" transport=").append(transport);
sb.append(" distributedStatisticsEnabled=").append(distributedStatisticsEnabled);
sb.append(" distributedStatistics=").append(distributedStatistics);
sb.append(" listeners=").append(listeners);
sb.append(" doWorkDistributionEnabled=").append(doWorkDistributionEnabled);
sb.append(" startWorkDistributionEnabled=").append(startWorkDistributionEnabled);
sb.append(" scheduleWorkDistributionEnabled=").append(scheduleWorkDistributionEnabled);
}
}